Here's another scary control panel. This was controlling a critical cooling water system for forging and heat treating furnaces. I replaced this system about a year ago with a PLC. As you can see it was a bear to try to work on.
Although red wire is a nice color, they do make more colors... When I finish a controller it looks like a rainbow inside so you can tell what goes where even if the label should fall off. It also makes tracing wires quick when they enter a bundle. I have probably 40 different color combinations of MTW wire in stock... Oooh... look at the pretty colors...
#114380 - 02/23/0307:34 PMRe: Another Scary Control Panel
I agree with trainwire. Often times, a nice neat panel, turns into a rat’s nest when machinery/equipment malfunctions. Sometimes, in industrial setting, it has to be fixed as fast as possible and more often than not there are no prints available. So to troubleshoot the maintenance person starts cutting ty-raps and pulling on wires to see what powers what and where the wires go. When the equipment is back up and running everyone is happy and time is not taken to redress panel as it originally was. The result is a mess as pictured above.
#114384 - 02/24/0305:39 PMRe: Another Scary Control Panel
Unfortunatly this enclosure started out that bad, it looks a little better since it had been disconnected already and one ball of wiring passing through the box was removed also. Even though only about half the wires were tagged at least the relays were labeled, but the print was yet another disaster. Good thing for the plant that "electrician" doesn't work here anymore.
[This message has been edited by Crowbar (edited 02-24-2003).]
#114385 - 03/04/0311:24 PMRe: Another Scary Control Panel
I'm sure it didn't start out looking like this mess. Looks like a troubleshooter ended up being a troublemaker. Red? I modified an amusement park ride at Knott's Berry Farm (So CA) in the late '70s. We used 31 miles of #16 TFFN for AC control wiring...every inch was red.